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Finding the Fourth Proportional to 316,901.90, 475,383.90 and 92,264.60

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Solution

The fourth proportional to 316,901.90, 475,383.90 and 92,264.60 is: 138,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,901.90 : 475,383.90 = 92,264.60 : x
  2. Step 2: Convert to fraction form
    316,901.90/475,383.90 = 92,264.60/x
  3. Step 3: Cross multiply
    316,901.90x = 475,383.90 × 92,264.60
  4. Step 4: Simplify right side
    316,901.90x = 43,861,105,379.94
  5. Step 5: Solve for x
    x = 43,861,105,379.94/316,901.90
  6. Step 6: Final answer
    x = 138,405.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.